Universially in DosBox it seems to be impossible to type anything with numbers or symbols (anything requiring Fn) and the mouse doesn't appear where you tap. Sound also seems distorted or something.

Spellcasting 101: Sorcerers get all the girls
Dosbox 0.72 chinook (n8x0) build #1
vga mode, sb16 sound, cycles 800, frameskip 0
New screens are slow to load but it's full color with sound. Being a text-based game performance isn't such an issue. Performance while typing is normal. Cursor is not where you point.

ZZT
Dosbox 0.72 chinook (n8x0) build #1
tandy mode, sb16 sound, cycles 800, frameskip 0
Seems to work just as well as on a regular computer

Ultima Underworld
Dosbox 0.72 chinook (n8x0) build #1
vga mode, sb16 sound, cycles 800, frameskip 2
Runs, a little slow but usable on low detail settings. Unfortunately unplayable due to lack of right-click which is required to pick up objects, talk to people, open doors, fight, etc.